Relevant bibliographies by topics / Poly(acrylamide-co- acrylic acid)

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Poly(acrylamide-co- acrylic acid)'

Author: Grafiati
Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "Poly(acrylamide-co- acrylic acid)"

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Li, Ting Xi, Na Kong, Su Su Gao, Peng Sui, Yu Hua Zhao, and Cheng Qian Yuan. "Synthesis and Water Absorbency of Poly(acrylic acid-co-acrylamide)." Advanced Materials Research 250-253 (May 2011): 695–98. http://dx.doi.org/10.4028/www.scientific.net/amr.250-253.695.

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A new type of poly (acrylic acid-co-acrylamide) was synthesized by copolymerization method using acrylic acid (AA) and acrylamide (AM) as monomer. Synthesis technology was as follow: the acrylamide and acrylic acid molar ratio was 0.3-0.4, the temperature was 55-60°C, the degree of neutralization of AA was 70%, the potassium persulfate and monomer mass ratio was 0.2%-0.3%, the aluminum hydroxide and monomer mass radio was 0.03%-0.05%. The water absorption was more than thousands of times.
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Ding, Yuan Rong, Zhi Wei Li, He Qun Su, and Yang Ding. "Study on Viscosity of Poly(Acrylic Acid-Co-Acrylamide) Concentrated Solution with Different Potential Crosslinking Agent." Advanced Materials Research 311-313 (August 2011): 1157–60. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.1157.

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Poly(acrylic acid-co-acrylamide) has large number of ionic and nonionic hydrophilic groups, such making the rheological behavior of its solution complex. In this research, four different potential crosslinking agents which contains activating hydroxyl group and unsaturated bond were introduced into the poly(acrylic acid-co-acrylamide) polymer during aqueous solution radical polymerizations. Rotary viscosimeter was chosen to characterize the apparent viscosity of poly(acrylic acid-co-acrylamide) concentrated solutions. Temperature, concentration of the aqueous concentrated solutions and proportion of potential crosslinking agent are the most important factors. Results shows that the apparent viscosity of PAAM concentrated solution decreases with the increase of temperature, the decreases of concentration of the aqueous concentrated solutions and the proportion of potential crosslinking agent.
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Czarnecka, Elżbieta, and Jacek Nowaczyk. "Synthesis and Characterization Superabsorbent Polymers Made of Starch, Acrylic Acid, Acrylamide, Poly(Vinyl Alcohol), 2-Hydroxyethyl Methacrylate, 2-Acrylamido-2-methylpropane Sulfonic Acid." International Journal of Molecular Sciences 22, no. 9 (April 21, 2021): 4325. http://dx.doi.org/10.3390/ijms22094325.

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Three polymers with excellent absorption properties were synthesized by graft polymerization: soluble starch-g-poly(acrylic acid-co-2-hydroxyethyl methacrylate), poly(vinyl alcohol)/potato starch-g-poly(acrylic acid-co-acrylamide), poly(vinyl alcohol)/potato starch-g-poly(acrylic acid-co-acrylamide-co-2-acrylamido-2-methylpropane sulfonic acid). Ammonium persulfate and potassium persulfate were used as initiators, while N,N′-methylenebisacrylamide was used as the crosslinking agent. The molecular structure of potato and soluble starch grafted by synthetic polymers was characterized by means of Fourier Transform Infrared Spectroscopy (FTIR). The morphology of the resulting materials was studied using a scanning electron microscope (SEM). Thermal stability was tested by thermogravimetric measurements. The absorption properties of the obtained biopolymers were tested in deionized water, sodium chroma solutions of various concentrations and in buffer solutions of various pH.
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Zhou, Cheng, Yan Chen, Mingjun Huang, Yi Ling, Liming Yang, Guochen Zhao, and Jie Chen. "A pH and UCST thermo-responsive tri-block copolymer (PAA-b-PDMA-b-P(AM-co-AN)) with micellization and gelatinization in aqueous media for drug release." New Journal of Chemistry 44, no. 34 (2020): 14551–59. http://dx.doi.org/10.1039/d0nj02755c.

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A brand new pH and thermo-responsive amphiphilic ABC triblock copolymer of poly(acrylic acid)-block-poly(N,N-dimethyl acrylamide)-block-poly(acrylamide-co-acrylonitrile) (PAA-b-PDMA-b-P(AM-co-AN)) was applied as drug carrier systems.
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Zheng, Si Yu, Ye Tian, Xin Ning Zhang, Miao Du, Yihu Song, Zi Liang Wu, and Qiang Zheng. "Spin-coating-assisted fabrication of ultrathin physical hydrogel films with high toughness and fast response." Soft Matter 14, no. 28 (2018): 5888–97. http://dx.doi.org/10.1039/c8sm01126e.

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Tough physical hydrogel films were facilely prepared by spin-coating of a poly(acrylic acid-co-acrylamide) or poly(acrylic acid-co-N-isopropylacrylamide) solution and subsequent gelation in FeCl3 solution to form carboxyl–Fe3+ coordination complexes.
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Vinu, R., and Giridhar Madras. "Photocatalytic Degradation of Poly(Acrylamide-co-acrylic Acid)." Journal of Physical Chemistry B 112, no. 30 (July 2008): 8928–35. http://dx.doi.org/10.1021/jp801887t.

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Swift, Thomas, Linda Swanson, Andrew Bretherick, and Stephen Rimmer. "Measuring poly(acrylamide) flocculants in fresh water using inter-polymer complex formation." Environmental Science: Water Research & Technology 1, no. 3 (2015): 332–40. http://dx.doi.org/10.1039/c4ew00092g.

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Katime, I., R. Novoa, E. Dı́az de Apodaca, E. Mendizábal, and J. Puig. "Theophylline release from poly(acrylic acid-co-acrylamide) hydrogels." Polymer Testing 18, no. 7 (October 1999): 559–66. http://dx.doi.org/10.1016/s0142-9418(98)00054-3.

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Maurer, J. J., and G. D. Harvey. "Thermal degradation characteristics of poly(acrylamide-co-acrylic acid) and poly(acrylamide-co-sodium acrylate) copolymers." Thermochimica Acta 121 (November 1987): 295–306. http://dx.doi.org/10.1016/0040-6031(87)80180-6.

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Colletti, Ronald F., Harvey S. Gold, and Cecil Dybowski. "Characterization of the Adsorption of Poly(Acrylamide), Poly(4-methoxystyrene), and Poly(Acrylic Acid) on Aluminum Oxide by Inelastic Electron Tunneling Spectroscopy." Applied Spectroscopy 41, no. 7 (September 1987): 1185–89. http://dx.doi.org/10.1366/0003702874447725.

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The adsorptions of polystyrene, poly(methoxystyrene), poly(acrylamide), and poly(acrylic acid) on aluminum oxide are investigated with inelastic electron tunneling spectroscopy. Comparison with infrared data for thin polymer films of the polymer samples gives insight into the adsorbed polymer configuration. Data indicate that poly(styrene) is weakly physisorbed to aluminum oxide, while poly(methoxystyrene), poly(acrylamide), and poly(acrylic acid) react to form strong bonds with the oxide surface. On the basis of this data, adsorption mechanisms are suggested for each of the polymers. Poly(acrylamide) adsorbs via a protonation of the amine group by the surface hydroxyl groups. Poly(4-methoxystyrene) forms a phenolate ion and can react further with the aluminum surface centers. Poly(acrylic acid) adsorbs to the oxide surface in a manner analogous to that of small organic acids such as the carboxylate ion.
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Dissertations / Theses on the topic "Poly(acrylamide-co- acrylic acid)"

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Pinardag, Fatma Esra. "Modified Acrylic Hydrogels As Controlled Release Systems." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607362/index.pdf.

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In this study, pH-sensitive poly(acrylamide-co-acrylic acid) hydrogels were synthesized as controlled release systems in the presence of N,N-methylene bisacrylamide as crosslinker and ammonium persulfate as initiator. A set of hydrogels were used in the form they were prepared. One set of hydrogels were prepared as porous networks by incorporating sodium chloride into the reaction medium and then leaching of it after the completion of polymerization reaction. Two sets of hydrogels were modified by argon-plasma at different discharge powers. Hydrogels were characterized by 13C-NMR, XPS, SEM, ATR-FTIR, ESR as well as equilibrium degree of swelling (EDS) and contact angle measurements. Prepared hydrogels were loaded with a model antibiotic, ciprofloxacin-HCl (CPFX), and in-vitro release of CPFX from hydrogel matrices were examined in buffer solutions of varying pH values. There are two factors determining the release rates of CPFX
one is the pH-dependent solubility of CPFX and the other is EDS of the hydrogel samples. For porous samples drug loading and release rates were higher when compared to the control samples and CPFX solubility dominated over release kinetics. Plasma treatment resulted in prolonged release rates in acidic medium.
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Canning, Sarah. "Poly(alkyl methacrylate-co-acrylic acid) copolymers of varying architecture for improved adhesion." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/10388/.

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Amphiphilic copolymers composed of hydrophilic polyacrylic acid segments and hydrophobic poly(alkyl methacylate) segments were targeted as adhesion-promoting additives for use in printing inks. Methyl, butyl and lauryl methacrylates were chosen to vary hydrophobicity. Initially, a phase transfer-catalysed backbone functionalisation and a reversible addition-fragmentation chain transfer (RAFT)-controlled grafting step were employed to form graft copolymers, although polyacrylic acid homopolymer was also produced. The lauryl methacrylate synthesis proved more difficult due to the steric effect of the long alkyl chain. Branched and linear poly(alkyl methacrylate-acrylic acid) copolymers were then synthesised using RAFT, in either a one-pot polymerisation, producing random copolymers, or a two-step procedure forming block copolymers. Molecular weights of close to 20 000 g mol-1 were achieved, with methacrylate:acrylic acid ratios close to 1:1, as targeted. Branching was confirmed through calculation of Mark-Houwink parameters using GPC with viscometric detection, and a 13C NMR method was developed to identify block or random monomer sequence distribution. Due to their amphiphilic nature, the copolymers were found to self-assemble in water to form macromolecular structures. These varied according to architecture, monomer distribution, and hydrophobicity of the methacrylate segment. Small angle neutron scattering was used to study the copolymers in a range of solvent systems. Whilst Gaussian coils were formed in d-THF and self-assembled spheres or multi-lamellar micelles were formed in D2O, the copolymers were found to aggregate into fractal structures in intermediate solvency conditions. The behaviour of the copolymers when coated on polyolefin substrates was studied by contact angle measurements, and the random materials created more polar surfaces compared to the segmented analogues. A force spectroscopy technique showed potential for accurate comparison of copolymer adhesion. Ink formulations containing the butyl methacrylate copolymers jetted well on both thermal inkjet and drop on demand printers. Adhesion was assessed using industry standard tests, and better overall performance was observed for the branched copolymers.
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Siyambalagoda, Gamage Pubudu Hasanka. "Synthesis and applications of ruthenium(II)quaterpyridinium complexes and Poly-N-isopropylacrylamide/ acrylic acid copolymers." Diss., Kansas State University, 2009. http://hdl.handle.net/2097/4621.

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Doctor of Philosophy
Department of Chemistry
Stefan Bossmann
Tris-homoleptic ruthenium(II)-quaterpyridyl and quaterpyridinium complexes, with +8 and +14 charge were synthesized by utilizing high pressure reaction pathway. These complexes have diameters ranging from 1.82 to 4.55 nm according to the molecular modeling calculations. These ruthenium complexes are highly luminescent and contain long excited state life times. The novel ruthenium(II)-quaterpyridinium complexes exhibit superior reactivity as sensitizer-relay-assemblies (SRA‟s) in sacrificial systems for water and carbon dioxide reductions, while harvesting the ultraviolet- and most of the visible fraction of the incident solar spectrum. Ru(II)-quaterpyridinium complexes and Pd/TiO2 catalysts were successfully used as the catalytic system for the photo catalytic reduction of water and carbon dioxide to hydrogen and methane respectively. Phosphonate-tethered Ru(II)-quaterpyridinium complexes were synthesized from Ru(II)-tris-quaterpyridyl complexes. These complexes form stable adhesive layers on indium tin oxide (ITO) electrodes. A series of differential pulse voltammetry experiments were carried out to measure the ground state and excited state redox potentials of all the Ru(II)quaterpyridinium complexes. The reductive potentials obtained were compared with the reductive potentials of CO2 to CH4 and H2O to H2 reductions. The measurements obtained from the experiments confirmed that it is possible to thermodynamically oxidize water and reduce CO2 by using phosphonate-tethered Ru(II)-quaterpyridinium complexes. These complexes are successfully utilized as prototypes for mycobacterial channel blockers. The Ru(II) complexes show distinct changes in their luminescence spectra when bound to the porin MspA from M. smegmatis, which is a non-pathogenic relative of M. tuberculosis. By using HPLC, we have determined binding constants of the Ru(II)-complexes to MspA in phosphate buffer (0.05 M, pH = 6.8) ranging from 5.2 x 109 M-1 (Ru-C2) to 1.8 x 109 M-1 (Ru-C4). Our findings indicate that channel blocking is a promising treatment strategy for mycobacterial infections. Poly-N-isopropyl-acrylamide/acetic acid copolymers were synthesized and characterized by elemental analysis and gel permeation chromatography. The average composition of the copolymers determined from CHN analysis is in excellent correlation with the feed composition indicating that the radical polymerization process is indeed statistical. Crosslinking of individual polymer chains permitted the generation of ultraflat layers on Mica surfaces by a simple spin-casting procedure, which are able to host the mycobacterial channel protein MspA, while retaining its channel function.
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Dey, Rebecca. "An investigation into the potential use of poly(vinylphosphonic acid-co-acrylic acid) in bone tissue scaffolds." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/an-investigation-into-the-potential-use-of-polyvinylphosphonic-acidcoacrylic-acid-in-bone-tissue-scaffolds(0f3b96dd-29e6-4b46-9760-57770dee8bde).html.

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Bone undergoes constant turnover throughout life and has the capacity to regenerate itself. However, the repair of critical size defects, caused by bone diseases such as osteoporosis, can be more problematic. Therefore, there is a clinical need for a bone graft substitute that can be used at sites of surgical intervention to enhance bone regeneration. Poly(vinylphosphonic acid-co-acrylic acid) (PVPA-co-AA) has recently been identified as a potential candidate for use in bone tissue scaffolds. It is hypothesised that PVPA-co-AA can mimic the action of bisphosphonates – a class of drugs used in the treatment of osteoporosis – by binding to calcium ions from bone mineral surfaces. In this way, bisphosphonates can affect bone turnover by increasing the activity of osteoblasts and reducing osteoclast activity. Although PVPA-co-AA has been shown to improve bone formation, the mechanism of action has so far not been fully elucidated. Therefore, this work aims to understand the effect of copolymer composition on the properties of PVPA-co-AA, and thus to determine its effect on osteoblast adhesion and proliferation. PVPA-co-AA copolymers have been synthesised with a range of monomer feed ratios. It was found that a VPA content of 30 mol % led to the greatest calcium binding affinity of the copolymer and is thus expected to lead to enhanced bone formation and mineralisation of the matrix produced by osteoblast cells. The release profile of PVPA-co-AA from electrospun PCL scaffolds was investigated. It was shown that all of the PVPA-co-AA was released into aqueous media within 8 h of immersion. It was also found that the calcium chelation from osteogenic differentiation media significantly increased within the first 8 h. Therefore, it was concluded that PVPA-co-AA is released from the scaffolds, where it can then bind to calcium ions from the bone mineral surface to promote mineralisation, thus acting as a mimic of non-collagenous proteins, which are present in the extracellular matrix (ECM) of bone. Hydrogels of PVPA-co-AA have been produced and the effect of monomer feed ratio (0-50 mol % VPA) on the properties of the gels was explored. It was found that an increase in VPA content led to greater hydrogel swelling and increased porosities. Hydrogels that contained 30 and 50 mol % VPA were shown to have similar morphologies to the native ECM of bone. Rheological testing showed that hydrogels with higher VPA contents were more flexible and could be deformed to a large extent without permanent deformation of their structure. An increase in osteoblast adhesion and proliferation was observed for hydrogels with 30 and 50 mol % VPA content as well as superior cell spreading. Osteoblast cell metabolic activity also increased as a function of VPA content in the hydrogels. This work indicates that hydrogels of PVPA-co-AA, with VPA contents of 30 or 50 mol %, are ideal for use as bone tissue scaffolds. Furthermore, the mechanical and cell adhesion properties of the gels can be tuned by altering the copolymer composition. Finally, composite hydrogels of PVPA-co-AA and hydroxyapatite (HA) have been produced and investigated for their ability to remove fluoride ions from groundwater. It was found that the fluoride uptake ability of PVPA-HA hydrogels was significantly enhanced when compared with HA powder alone. Furthermore, the fluoride uptake was dependent on many factors, including pH, contact time and the presence of competing ions. It was possible to regenerate the hydrogel to remove the fluoride ions, and thus it was shown that the material can be used a number of times with only a slight reduction in its fluoride uptake capacity.
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Zhou, Bo. "Synthesis and characterization of crystalline assembly of poly Nisopropylacry-lamide)-co-acrylic acid nanoparticles." Thesis, University of North Texas, 2004. https://digital.library.unt.edu/ark:/67531/metadc4671/.

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In this study, crystalline poly(N-isopropylacrylamide-co-acrylic acid) (PNIPAm-co-AAc) nanoparticle network in organic solvents was obtained by self assembling precursor particles in acetone/epichlorohydrin mixture at room temperature followed by inter-sphere crosslinking at ~98 °C. The crystals thus formed can endure solvent exchanges or large distortions under a temporary compressing force with the reoccurrence of crystalline structures. In acetone, the crystals were stable, independent of temperature, while in water crystals could change their colors upon heating or changing pH values. By passing a focused white light beam through the crystals, different colors were displayed at different observation angles, indicating typical Bragg diffraction. Shear moduli of the gel nanoparticle crystals were measured in the linear stress-yield ranges for the same gel crystals in both acetone and water. Syntheses of particles of different sizes and the relationship between particle size and the color of the gel nanoparticle networks at a constant solid content were also presented. Temperature- and pH- sensitive crystalline PNIPAm-co-AAc hydrogel was prepared using osmosis crosslinking method. Not only the typical Bragg diffraction phenomenon was observed for the hydrogel but also apparent temperature- and pH- sensitive properties were performed. The phase behavior of PNIPAm nanoparticles dispersed in water was also investigated using a thermodynamic perturbation theory combined with lightscattering and spectrometer measurements. It was shown how the volume transition of PNIPAM particles affected the interaction potential and determined a novel phase diagram that had not been observed in conventional colloids. Because both particle size and attractive potential depended on temperature, PNIPAM aqueous dispersion exhibited phase transitions at a fixed particle number density by either increasing or decreasing temperature. The phase transition of PNIPAm-co-AAc colloids was also studied. The results from the comparison between pure PNIPAm and charged PNIPAm colloids showed that the introducing of carboxyl (-COOH) group not only contributed to the synthesis of three-dimensional nanoparticle network but also effectively increased the crystallization temperature and concentration range. The phase transitions at both low and high temperatures were observed from the turbidity change by using UV-Vis spectrometer. Centrifugal vibration method was used to make crystalline PNIPAm-co-AAc dispersion at high concentration (8%). The turbidity test proved the formation of iridescent pattern.
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Pethe, Vishwas Vyankatrao. "Oxygen and Carbon Dioxide Permeability of EEA/PEO Blends and Microlayers." Case Western Reserve University School of Graduate Studies / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=case1196374484.

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Nugroho, Robertus Wahyu Nayan. "Steric Stabilization of Polylactide particles achieved by Covalent 'grafting-from' with Hydrophilic Polymers." Licentiate thesis, KTH, Polymerteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-122429.

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Despite numerous advantages of using particles in a wide range of applications, they have one drawback that is their tendency to agglomerate. One way to overcome this problem is to sterically  stabilize the particles by introducing polymeric  chains covalently attached to the surface. Surface modification by covalently attaching polymer chains to the particle surface can be achieved by e.g. a ‘grafting-from’ technique under UV irradiation. In this thesis, polylactide (PLA) particles were surface modified, under UV irradiation, with the hydrophilic monomers: acrylamide (AAm), acrylic acid (AA), and maleic anhydride (MAH). The developed ‘grafting-from’ technique was shown to be nondestructive method for surface modification of PLA particles of two different geometries. The change in surface chemistry of the PLA particles was confirmed by FTIR and XPS, indicating the success of the surface grafting technique. Force interaction between two surface grafted PLA substrates was measured by colloidal probe AFM in different salt concentrations. In order to understand the repulsive force, the AFM force profiles were compared to the DLVO theory and AdG model. Long range repulsive interactions were mainly observed when hydrophilic polymers were covalently attached to the surface of PLA particles, leading to steric interaction. Attractive force dominated the interaction when neat PLA particle was approaching each other, resulting in particle aggregation, even though short range repulsion was observed at small separation distance, i.e. approximately 10 nm. Attractive interaction was also observed when neat PLA was approaching to PAA-grafted PLA substrate. This attractive interaction was much greater than force interaction between two neat PLA substrates.  The surface grafted particles can be used in biomedical application where secondary interactions are important to overcome particle agglomeration such as particle-based drug delivery.

QC 20130529

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Särnholm, Evelina. "Analyzing components of barrier coatings in different fractions during a repulping process." Thesis, Örebro universitet, Institutionen för naturvetenskap och teknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-93414.

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During paper manufacturing, coating and adhesives are added to paper and cardboard to improve quality and durability. When the paper is later recycled or becoming new paper, the coatings may pollute the water used in the recycling process. Thus, it is important to know in which fraction these coatings finish during the process. In this study, laboratory made samples that mimic the repulping and paper making process is used. The different fractions of the processes were analyzed for a clay as well as a polymer coating. Metal content from clay coating is analyzed using inductively coupled plasma-mass spectrometry and microwave plasma-atomic emission spectrometry. For analyzing polymer coating, gas chromatography-mass spectrometry was used. From the result of the analysis the Reject sample, which was collected with a bigger mesh sieve in a repulping system, contained the highest amount of both clay and polymer coating. The other sample fractions from the repulping process and paper making process, did not contain as high mass content of either clay nor polymer coating.
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Lan, Han-Zhong, and 藍漢中. "Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/fly ash composite hydrogel." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/39301253943970347119.

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碩士
國立臺灣師範大學
化學系
103
This main goal of thesis is to prepare two anionic superabsorbent hydrogel, polyacrylic acid / polyacryl amide ( P(AA/AM) ) and polyacrylic acid / polyacryl amide / fly ash ( P(AA/AM)/FA ). Ammmonium persulfate ( APS) and N,N’methylene bisacrylamide (MBA) were used as an initiator and crosslinking agent, respectively. Using FT-IR to identify structure, surface porosity is observed by SEM. The parameters what could be effected experiment are monomer ratio, initiator dosage, crosslinker dosage, reaction temperature and proportion of fly ash. We measure water absorbency of hydrogel in water, saline solution and variety of different situation and then test the mechanical properties, including compressive strength and water absorption under load (AUL). We evaluate if P(AA/AM)/FA hydrogel whose additive quantity, proportion of fly ash and particle size is reasonablely applied to the grout and cement mortar as a self-curing agent. Then we researched hydration degree, cracking index, and setting time in grout. We calculated weight-loss, water retention,compressive strength, internal humidity, and drying shrinkage in cement mortar. The result indicate that P(AA/AM)/FA hydrogel in the optimum reaction condition, the water absorbency is 386 g/g in water, and 56, 26 g/g in 0.1M NaCl(aq) and 0.1M CaCl2(aq), repectively. The compressive strength is 47.5 (Kgf / cm2). When we add P(AA/AM)/FA hydrogel into mortar as self-curing reagent, the optimum dosage, particle size and proportion of fly ash is 0.2 wt%, 0.082 mm and 10 wt%, respectively, in this condition, improve the performance of weight-loss, compressive strength, internal humidity, drying shrinkage and craking formation. All the performance is better than the control group without P(AA/AM)/FA hydrogel.
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CHOU, Yu-Lin, and 周佑霖. "Study on the synthesis and properties of poly(acrylic acid-co-acrylamide)/silica fume composite hydrogel." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/24246573649328673500.

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碩士
國立臺灣師範大學
化學系
103
This main goal of thesis is to prepare two anionic superabsorbent hydrogel, polyacrylic acid / polyacryl amide ( P(AA/AM) ) and polyacrylic acid / polyacryl amide / Silica fume ( P(AA/AM)/SF ). Ammmonium persulfate (APS) and N,N’methylene bisacrylamide (MBA) were used as an initiator and crosslinking agent, respectively. Using FT-IR to identify structure, surface porosity is observed by SEM. The parameters what could be effected experiment are monomer ratio, initiator dosage, crosslinker dosage, reaction temperature and proportion of silica fume. We measure water absorbency of hydrogel in water, saline solution and variety of different situation and then test the mechanical properties, including compressive strength . We evaluate if P(AA/AM) hydrogel whose additive quantity is reasonablely applied to the grout and cement mortar as a self-curing agent. Then we researched hydration degree, cracking index, and setting time in grout. We calculated weight-loss, water retention,compressive strength, internal humidity, and drying shrinkage in cement mortar. The result indicate that P(AA/AM)SF hydrogel in the optimum reaction condition, the water absorbency is 410.5 g/g in water, and 40.4, 24.4 g/g in 0.1M NaCl(aq) and 0.1M CaCl2(aq),repectively. The compressive strength is 48.6 (Kgf / cm2). When we add P(AA/AM) hydrogel into mortar as self-curing reagent, the optimum dosage is 0.2 wt% , respectively, in this condition, improve the performance of weight-loss, compressive strength, internal humidity, drying shrinkage and craking formation. All the performance is better than the control group without P(AA/AM) hydrogel.
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Book chapters on the topic "Poly(acrylamide-co- acrylic acid)"

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Wohlfarth, Ch. "Solubility parameter of poly(acrylic acid-co-ethyl acrylate)." In Polymer Solutions, 1470. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_860.

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Wohlfarth, Ch. "Solubility parameter of poly(isobutyl methacrylate-co-acrylic acid)." In Polymer Solutions, 1599. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_950.

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Cabarcos, E. López, J. Rubio Retama, and B. Lopez-Ruiz. "Immobilization of glucose oxidase in cross-linked poly(acrylamide/acrylic acid) microgels." In Trends in Colloid and Interface Science XVII, 194–96. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/b94016.

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Wohlfarth, Ch. "Solubility parameter of poly(acrylic acid-co-ethyl acrylate-co-2-hydroxyethyl acrylate)." In Polymer Solutions, 1471. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_861.

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Wohlfarth, Ch. "High pressure fluid phase equilibrium data of poly(ethylene-co-acrylic acid) in ethene and acrylic acid." In Polymer Solutions, 411–14. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32057-6_211.

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Çatiker, E., T. Filik, and E. Çil. "Antibacterial Activity of Hyperbranched Poly(Acrylic Acid-Co-3-Hydroxypropionate) Hydrogels." In Science and Technology of Polymers and Advanced Materials, 395–402. Includes bibliographical references and index.: Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429425301-28.

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Wohlfarth, Ch. "Second virial coefficient of poly(2-ethylhexyl methacrylate-co-acrylic acid)." In Polymer Solutions, 854–55. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-02890-8_530.

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Wohlfarth, Ch. "Liquid-liquid equilibrium data of poly(N-isopropylacrylamide-co-acrylic acid) in water." In Polymer Solutions, 2746–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-88057-8_550.

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Bounabi, L., N. Bouslah Mokhnachi, N. Haddadine, and A. Benaboura. "Controlling Drug Release Through Poly(2-Hydroxyethylmethacrylate-co-acrylic Acid) Grafted Sodium Alginate." In Proceedings of the Third International Symposium on Materials and Sustainable Development, 126–33. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89707-3_15.

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Wohlfarth, Ch. "High pressure fluid phase equilibrium data of poly(ethylene-co-acrylic acid) in ethene." In Polymer Solutions, 3226–30. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-88057-8_646.

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Conference papers on the topic "Poly(acrylamide-co- acrylic acid)"

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Manaila, Elena, Gabriela Craciun, Daniel Ighigeanu, and Maria Daniela Stelescu. "Radiation Synthesis and Characterization of Poly(Acrylamide-co-Acrylic Acid) Hydrogels Used for the Absorption of Heavy Metals." In The 6th International Conference on Advanced Materials and Systems. INCDTP - Division: Leather and Footwear Research Institute, Bucharest, RO, 2016. http://dx.doi.org/10.24264/icams-2016.i.16.

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Manaila, Elena, Gabriela Craciun, Daniel Ighigeanu, and Maria Daniela Stelescu. "Heavy Metals Removal from Contaminated Water Using Poly(Acrylamide-co-Acrylic Acid)-Sodium Alginate Flocculant Obtained by Electron Beam Irradiation." In The 6th International Conference on Advanced Materials and Systems. INCDTP - Division: Leather and Footwear Research Institute, Bucharest, RO, 2016. http://dx.doi.org/10.24264/icams-2016.iii.9.

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Olekhnovich, Roman. "SYNTHESIS OF POLY(ACRYLIC ACID)-CO-ACRYLAMIDE/BENTONITE POLYMER NANOCOMPOSITE AS AN ABSORBENT FOR REMOVAL OF HEAVY METAL IONS FROM WATER." In 15th International Multidisciplinary Scientific GeoConference SGEM2015. Stef92 Technology, 2011. http://dx.doi.org/10.5593/sgem2015/b52/s20.063.

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Sjaifullah, Achmad, Lia Zakiatal Faidza, and Yoshiharu Mitoma. "Arrowroot starch-g-poly (acrylic acid-acrylamide)/zeolite hydrogel composite as matrix for CRF of nitrogen, phosphorous and kalium." In HIGH-ENERGY PROCESSES IN CONDENSED MATTER (HEPCM 2020): Proceedings of the XXVII Conference on High-Energy Processes in Condensed Matter, dedicated to the 90th anniversary of the birth of RI Soloukhin. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0015312.

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P, Jayakrishnan, and M. T. Ramesan. "Synthesis, characterization and electrical properties of Fe3O4/poly(vinyl alcohol-co-acrylic acid) nanocomposites." In LIGHT AND ITS INTERACTIONS WITH MATTER. AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4898235.

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Sun, Qina, Yujia Yang, Jiawei Li, Yipeng Shen, and Junfeng Li. "Adsorption of Co(II) from aqueous solution by synthesized chitosan-g-poly (acrylic acid) hydrogel." In 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/mmeceb-15.2016.50.

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Radzali, Nur Ain Mohd, Norsyahidah Mohd Hidzir, Abdul Khaliq Mokhtar, and Irman Abdul Rahman. "60Co-induced grafting of dual polymer (acrylic acid-co-HEMA) onto expanded poly(tetrafluoroethylene) membranes." In APPLICATION OF MATHEMATICS IN TECHNICAL AND NATURAL SCIENCES: 12th International On-line Conference for Promoting the Application of Mathematics in Technical and Natural Sciences - AMiTaNS’20. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0031519.

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Melo, L., R. Benavides, G. Martinez, D. Morales-Acosta, L. Da Silva, and M. M. S. Paula. "Effect of the scaling-up the reactions synthesis of the poly(styrene-co-acrylic acid) polyelectrolyte at laboratory level." In 2016 XVI International Congress of the Mexican Hydrogen Society (CSMH). IEEE, 2016. http://dx.doi.org/10.1109/csmh.2016.7947660.

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Mittal, Hemant, Ali Al-Alili, and Saeed M. Alhassan. "Adsorption Isotherm and Kinetics of Water Vapor Adsorption Using Novel Super-Porous Hydrogel Composites." In ASME 2020 14th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/es2020-1642.

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Abstract:
Abstract Deliquescent salts have high water vapor adsorption capacity, but they dissolve in water by forming crystalline hydrates. That restricts their use in different water vapor adsorption applications. However, this limitation can be overcome by incorporating deliquescent salts within a polymer matrix which will keep the salt solution in place. Furthermore, if the polymer matrix used is also capable of adsorbing water vapor, it will further improve the overall performance of desiccant system. Therefore, in this work, we are proposing the synthesis and use of a highly effective new solid polymer desiccant material, i.e. superporous hydrogel (SPHs) of poly(sodium acrylate-co-acrylic acid (P(SA-co-AA)), and subsequently its composite with deliquescent salt, i.e. calcium chloride (CaCl2), to adsorb water vapors from humid air without the dissolution of the salt in the adsorbed water. Parental PAA-SPHs matrix alone exhibited an adsorption capacity of 1.02 gw/gads which increased to 3.35 gw/gads after incorporating CaCl2 salt in the polymer matrix. Both materials exhibited type-III adsorption isotherm and the experimental isotherm data fitted to the Guggenheim, Anderson and Boer (GAB) isotherm model. However, the adsorption kinetics followed linear driving force model which suggested that this extremely high adsorption capacity was due to the diffusion of water molecules into the interconnected pores of SPHs via capillary channels followed by the attachment of adsorbed water molecules to the CaCl2 salt present in the polymer matrix. Furthermore, the adsorbents were used successively for six cycles of adsorption with a very little loss in adsorption capacity. Therefore, the proposed polymer desiccant material overcomes the problem of dissolution of deliquescent salts and opens the doors for a new class of highly effective solid desiccant material.
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Helmiyati, H., and A. Syarifudin. "Preparation and characterization of superabsorbent nanocomposites based on sodium alginate-g-acrylic acid-co-acrylamide/montmorillonite." In PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2017 (ISCPMS2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5064077.

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Reports on the topic "Poly(acrylamide-co- acrylic acid)"

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Ma, C., W. Zhang, and M. Ciszkowska. Transport of Ions and Electrostatic Interactions in Thermoresponsive Poly (N-Isopropylacrylamide-co-Acrylic Acid) Hydrogels: Electroanalytical Studies. Fort Belvoir, VA: Defense Technical Information Center, July 2001. http://dx.doi.org/10.21236/ada390091.

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